Move over Iron Man! There’s a new engineering superhero who’s part bionic, able to change his height, and scale vertical rock and ice walls with a simple change of leg prosthetics that he designed himself. Not only that, but he designs bionic limbs for others, too.

A droplet of clear liquid can bend light, acting as a lens. Now, by exploiting this well-known phenomenon, Australian researchers have developed a new process to create inexpensive high quality lenses that will cost less than a penny apiece.